The Kernel London Brewers Alliance Collaboration London Stout

Also known as London Brewers Alliance Collaborative Stout 2012
Commercial description
Brewed at Kernel this ale is based on an original Barclay Perkins recipe of 1925 for "BS Export Stout". Includes many interesting features including adding Black malt to the Copper. Bottle Conditioned.
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London Brewers Alliance Collaborative Stout 2012

The brewer markets this same or near-same product by more than one names. This can be the result of a brewer distributing this beer under different names in different countries, or the brewer simply changing the name, but not the recipe at different points in time.